The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
Oct. 27, 2017
Koki Holdings Co., Ltd., Tokyo, JP;
Tomomasa Nishikawa, Ibaraki, JP;
Masayuki Ogura, Ibaraki, JP;
Masaru Hirano, Ibaraki, JP;
Takuhiro Murakami, Ibaraki, JP;
Nobuhiro Takano, Ibaraki, JP;
Osamu Kawanobe, Ibaraki, JP;
Akira Matsushita, Ibaraki, JP;
Hayato Yamaguchi, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
In order that the output voltage of a battery pack can be switched and the battery pack can be shared among different voltage electric appliances, this battery pack has a switching mechanism that switches outputting a low voltage by parallel connection of two cell units or outputting a high voltage by series connection of the two cell units, said two cell units each being composed of a plurality of cells connected in series, wherein the switching mechanism is configured from a change-over switch having an operation lever (452). The change-over switch is embedded in a battery pack (400), and an operator is able to manually switch outputting 18 V by setting the operation lever (452) at a first position or outputting 36 V by setting the operation lever (452) at a second position.